C / C++ / MFC

FirstPrevNext

Re: How I can do it !!! Ahmad17-Mar-01 21:25 Ahmad 17-Mar-01 21:25  Thank you lauren . but can I erase the area which I draw in ,I mean not whole screen just the area which I draw in ... AHMAD ALWASHALI Re: How I can do it !!! l a u r e n17-Mar-01 22:52 l a u r e n 17-Mar-01 22:52  you don't draw directly to the desktop window at all you set up a window that has no border or title bar etc and that is transparent and draw to that ... it will look like it is being drawn to the desktop but in fact wont be hence you can do what you like to the window you own even if you have to copy the desktop to the window bg each time it will be far less data to copy than the whole desktop --- "every year we invent better idiot proof systems and every year they invent better idiots" Re: How I can do it !!! Ahmad19-Mar-01 21:49 Ahmad 19-Mar-01 21:49  THANK YOU VERY MUCH AHMAD ALWASHALI C++ question .. Hadi Rezaee16-Mar-01 19:44 Hadi Rezaee 16-Mar-01 19:44  <<< In the name of GOD >>> Hi. For indicate the variable kind of long in C++: long i; printf("%ld",i); Now, i want to indicate unsigned long variable, for example: 3147483647 How can i ? Hadi Rezaie Re: C++ question .. l a u r e n16-Mar-01 23:08 l a u r e n 16-Mar-01 23:08  either use unsigned long or DWORD --- "every year we invent better idiot proof systems and every year they invent better idiots" Re: C++ question .. Tim Deveaux17-Mar-01 4:22 Tim Deveaux 17-Mar-01 4:22  long x = 829137291; printf("unsigned long = %lu\n", x); If you look for 'printf format specifications' in the MSDN index you'll get lots of neat stuff. SetModifiedFlag() ... Hadi Rezaee16-Mar-01 19:43 Hadi Rezaee 16-Mar-01 19:43  <<< In the name of GOD >>> Hi. What is SetModifiedFlag function and when we using of it ? This is my answer : "Always call CDocument::SetModifiedFlag() after changing your document DATA." But what is knid of DATA ? Graphic data or File data or variable data or ... ? Hadi Rezaie Re: SetModifiedFlag() ... l a u r e n16-Mar-01 23:13 l a u r e n 16-Mar-01 23:13  your document is the place where the data for the app (or more correctly the document class) is stored / kept / buffered depending on what kind of app you are writing don't confuse a document in the mfc sense with a document in the word or excel sense although they are represented as mfc documents (probably) suppose you write a text editor that needs to know upon exit that the user modified the data in the view window ... on the event that changes the view data (or when you get the modified view data via ddx) you can set the mfc documents bModified flag to let the framework know the data changed you don't need to use it always ... i do in about half the apps i write --- "every year we invent better idiot proof systems and every year they invent better idiots" Re: SetModifiedFlag() ... Masaaki Onishi17-Mar-01 3:37 Masaaki Onishi 17-Mar-01 3:37  Hello, the codegurus around the world. Generally speaking, when we call UpdateAllViews(), and then OnUpdate() function of the views, this means that some data must be updated. In this case, we may add SetModifiedFlag(). In addition, if we works the complicated data structure, we usually use CObject derived class, and serialized this object. So, this may be problem. For example, what shall we do if the data are the same one after the user updated? the original data -> Updated data -> Updated data -> finally the same data as the original one. In this case, don't we call SetModifiedFlag()? The answer depends on the requirement... Or, we add the function to check the content of the data whenever the application calls UpdateAllViews(). That is, even though UpdateAllViews() is called and the data isn't changed, we don't need to call SetModifiedFlag()? In commercial level, it is better to call SetModifiedFlag() whenever UpdateAllViews() is called. Goodl luck! Have a nice day! -Masaaki Onishi- CWnd ... Hadi Rezaee16-Mar-01 19:41 Hadi Rezaee 16-Mar-01 19:41  <<< In the name of GOD >>> Hi. When CWnd is not attached to a window ? Hadi Rezaie Re: CWnd ... Ahmad16-Mar-01 21:18 Ahmad 16-Mar-01 21:18  can you make your question more clear ,please !!! AHMAD ALWASHALI Re: CWnd ... Tim Deveaux17-Mar-01 15:24 Tim Deveaux 17-Mar-01 15:24  A CWnd doesn't have a valid m_hWnd until one of Create, Attach, FromHandle, etc is called, and can lose it if that hwnd is killed - say by a call to DestroyWindow. Run function in class ... Hadi Rezaee16-Mar-01 19:40 Hadi Rezaee 16-Mar-01 19:40  <<< In the name of GOD >>> Hi. I have stupid question, but i really didn't understand. What mean code in L1 line ? BOOL CTestDlg::OnInitDialog() { L1: CDialog::OnInitDialog(); return TRUE; } Does this code is for, running OnInitDialog function again ? It mean OnInitDialog will run twice ? Other example: void CTestDlg::OnOK() { L1: CDialog::OnOK(); } Please explain to me ... Hadi Rezaie Re: Run function in class ... Ahmad16-Mar-01 21:15 Ahmad 16-Mar-01 21:15  HI Hadi_Rezaie BOOL CTestDlg::OnInitDialog() { L1: CDialog::OnInitDialog(); return TRUE; } that didn't mean running OnInitDialog function again . befor dialog is being visible you need to do some thing like initial your varibles or add icons ....etc this is your initial in BOOL CTestDlg::OnInitDialog() but base class ( CDialog )has some initial so you most call initial in base class : L1: CDialog::OnInitDialog(); I hope that's enough and sorry if I have mistakes (I didn't speak english very well) AHMAD ALWASHALI YEMEN washali@yahoo.com AHMAD ALWASHALI MFC RepositionBars - memory consumed Sara Burns16-Mar-01 13:50 Sara Burns 16-Mar-01 13:50  I have an MFC project which uses 2 views decended from CScrollView. I find that after each exit from CMainFrame::RecalcLayout my total memory allocation has increased by about 220bytes. This appears to happen during the processing of the RepositionBars function. I observed this while trying to find memory leaks using CMemoryState. I eliminated the leaks from my code but still seem to have this within "windows or MFC" code. Does anyone know how to prevent this as this function is run everytime I swap between the views. My project is expected to be in use over an extended time so a gradual increase in memory usage is a concern. It does appear to be given back once the program completes. Sara Re: MFC RepositionBars - memory consumed l a u r e n17-Mar-01 3:05 l a u r e n 17-Mar-01 3:05  "...derived from cscrollview..." ... are you sure the derived classes are not snaffling some memory away that is escaping detection? i would think (although it is entierly possible) that cscrollview would be fully tested and debugged by now as it is rather an 'old' class maybe you have a resource that isn't being released or something more exotic than straight memory allocs that are going awry --- "every year we invent better idiot proof systems and every year they invent better idiots" Property Sheets in CDialogBar Rob Planche16-Mar-01 8:45 Rob Planche 16-Mar-01 8:45  Does anyone out there now how to create a property sheet within a Dialog Bar? I have tried several different approaches, with no luck. I would really appreciate any advice, maybe this is not possible, if so let me know. If it is and you've done something like this please share with me how. Thanks, Rob Monitoring incoming calls 16-Mar-01 7:00 16-Mar-01 7:00  I'd like to program an app that can monitor incoming calls on my phone and display caller-id (if available). I think it has to be done with TAPI, right? Can anyone help me? thanks in advance Re: Monitoring incoming calls 16-Mar-01 7:14 16-Mar-01 7:14  There are plenty of examples in the platform SDK. I did some TAPI work about 3 or 4 years ago. We had an idea for an internet/TAPI product, but it didn't get past the prototype stages. That was using TAPI 2.0, which I don't remember much of. TAPI is up at V3.0 I think so, you'd best look at the docs. I think for callerID you may need a specialist card unless modems can do that now (couldn't when I last tried, but like I said, that was a while ago). Stephen Kellett Re: Monitoring incoming calls 28-Apr-01 2:43 28-Apr-01 2:43  i like to send voice from my vc++ application to telephone. i connect my application with the telepone using tapi but i am unable to the voice. help me. bas Re: Monitoring incoming calls 28-Apr-01 6:19 28-Apr-01 6:19  I did a TAPI project a while back and found that I was better off in the long run to buy an Active-X component which is tested and known to work rather than try to reinvent the wheel. Depending on the environment you must live in, telphony testing can be a pain. I use SAX Comm Objects and it works well for both outbound and inbound calls. I don't think Caller ID is part of Sax Comm. Paul Burton Outgoing calls 28-Apr-01 2:57 28-Apr-01 2:57  How to pass messages over the telephone? My application gets connected with the telephone and it calls the specified contact number. now i have the problem in sending message over it. if any one help me immediately, i would be grateful to you. Srinivas How can I prevent the MFC framework from enabling my toolbar buttons? 16-Mar-01 6:44 16-Mar-01 6:44  Hi I've tried to create toolbars with disabled buttons. Doesn't work. I've thrown in a check and discovered that someone enables the button right after my call to CToolBarCtrl::EnableButton. How can I prevent this? I'm quite sure that's the problem because I have hot toolbars working without problems. Is there anything different with using hot toolbars compared to disabled buttons? Re: How can I prevent the MFC framework from enabling my toolbar buttons? Chris Losinger16-Mar-01 7:06 Chris Losinger 16-Mar-01 7:06  you have to use the UPDATE_COMMAND_UI handlers to disable toolbar buttons. like this: void CSAFileMonDoc::OnUpdateWatchStart(CCmdUI* pCmdUI) { pCmdUI->Enable(!m_bRunning); } -c ------------------------------ Smaller Animals Software, Inc. http://www.smalleranimals.com URGENT...winsock oneillci16-Mar-01 6:36 oneillci 16-Mar-01 6:36  I'm new to DirectX programming and I'm doing a breakout clone as a college project. I have to add some network functionality to my game though. I think I've got my server up and running. I've created my socket, bound it and called WSAAsyncSelect with my own eventID and started listening. I just want to connect my client and send simple messages of 2 integers(that's all I need). I just need some help connecting to local host to send messages. On the client I've created my socket, bound it and called WSAAsyncSelect with my own eventID and I'm trying to connect and it is failing here. Can someone please help? Any help is much appreciated Ciaran

Last Visit: 31-Dec-99 18:00     Last Update: 7-Jun-24 18:45 Refresh ᐊ Prev1...18418184191842018421184221842318424184251842618427 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.